Evans, ranked number one in the world in his weight division, was regarded as one of Team Wales' best medal hopes.

Who is Fred Evans?

Won gold at the Cadet World Championships in Hungary in 2007

Became World Amateur Champion in Baku, Azerbaijan in 2011.

Lost in the welterweight final at London 2012 - beaten by Serik Sapiyev of Kazakhstan

Welsh boxing performance director James Thomas said: "Obviously we were aware of his conviction earlier this year and we certainly don't condone that kind of behaviour but we hoped Fred would have been able to continue to box and improve his lifestyle through the sport."

Wales team boss Brian Davies, who revealed on Monday that in the wake of several big-name withdrawals he was considering rethinking the team's medal target of 27, said everything possible had been done to get Evans to Glasgow.

"The key Welsh and British sporting agencies have been supportive in our attempts to get Fred to the Games and we are bitterly disappointed at the outcome," said Davies.

"Fred is a world-class boxer and has handled this difficult situation in a very disciplined manner - we thank him for his professionalism and wish him all the best for his future ambitions."